Aerosol-assisted CVD of SnO from stannous alkoxide precursors

Michael S. Hill, Andrew L. Johnson, John P. Lowe, Kieran C. Molloy, James D. Parish, Thomas Wildsmith, Andrew L. Kingsley

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The stannous alkoxides [Sn(OR)2] [R = i-Pr, t-Bu, C(Et)Me2, CHPh2, CPh3] have been synthesised by reaction of Sn(NR′2)2 with two equivalents of HOR [R′ = Me, R = i-Pr; R′ = SiMe3, R = t-Bu, C(Et)Me2, CHPh2, CPh3]. Single crystal X-ray diffraction analysis of the bis(diphenylmethoxide) (4) and bis(triphenylmethoxide) (5) species have shown them to comprise three-coordinate Sn(ii) centres through dimerisation in the solid state with the alkoxide units adopting transoid and cisoid configurations across the {Sn2O2} cores respectively. Thermogravimetric analysis indicates clean decomposition and some evidence of volatility at temperatures >200 °C for all three aliphatic alkoxides, whereas both the diphenyl- and triphenylmethoxide compounds provide higher decomposition temperatures and, for the triphenylmethoxide derivative, a residual mass consistent with the formation of a carbon-containing residue. The previously reported iso-propoxide (1) and tert-butoxide (2) derivatives have been utilised in toluene solution to deposit SnO thin films by aerosol-assisted chemical vapour deposition (AACVD) on glass at temperatures between 300 and 450 °C. While SnO is deposited under hot wall conditions as the only identifiable phase by p-XRD and Raman spectroscopy for both precursors, morphological analysis by SEM reveals inferior substrate coverage in comparison to previously reported ureide-based precursor systems.

LanguageEnglish
Pages18252-18258
Number of pages7
JournalDalton Transactions
Volume45
Issue number45
DOIs
StatusPublished - 7 Dec 2016

Fingerprint

Aerosols
Chemical vapor deposition
Derivatives
Decomposition
Dimerization
Toluene
Temperature
X ray diffraction analysis
Raman spectroscopy
Thermogravimetric analysis
Carbon
Deposits
Single crystals
Glass
Thin films
Scanning electron microscopy
Substrates

Cite this

Aerosol-assisted CVD of SnO from stannous alkoxide precursors. / Hill, Michael S.; Johnson, Andrew L.; Lowe, John P.; Molloy, Kieran C.; Parish, James D.; Wildsmith, Thomas; Kingsley, Andrew L.

In: Dalton Transactions, Vol. 45, No. 45, 07.12.2016, p. 18252-18258.

Research output: Contribution to journalArticle

Hill, Michael S. ; Johnson, Andrew L. ; Lowe, John P. ; Molloy, Kieran C. ; Parish, James D. ; Wildsmith, Thomas ; Kingsley, Andrew L. / Aerosol-assisted CVD of SnO from stannous alkoxide precursors. In: Dalton Transactions. 2016 ; Vol. 45, No. 45. pp. 18252-18258.
@article{9ddb245eec3944e7aa0b9626f0306d54,
title = "Aerosol-assisted CVD of SnO from stannous alkoxide precursors",
abstract = "The stannous alkoxides [Sn(OR)2] [R = i-Pr, t-Bu, C(Et)Me2, CHPh2, CPh3] have been synthesised by reaction of Sn(NR′2)2 with two equivalents of HOR [R′ = Me, R = i-Pr; R′ = SiMe3, R = t-Bu, C(Et)Me2, CHPh2, CPh3]. Single crystal X-ray diffraction analysis of the bis(diphenylmethoxide) (4) and bis(triphenylmethoxide) (5) species have shown them to comprise three-coordinate Sn(ii) centres through dimerisation in the solid state with the alkoxide units adopting transoid and cisoid configurations across the {Sn2O2} cores respectively. Thermogravimetric analysis indicates clean decomposition and some evidence of volatility at temperatures >200 °C for all three aliphatic alkoxides, whereas both the diphenyl- and triphenylmethoxide compounds provide higher decomposition temperatures and, for the triphenylmethoxide derivative, a residual mass consistent with the formation of a carbon-containing residue. The previously reported iso-propoxide (1) and tert-butoxide (2) derivatives have been utilised in toluene solution to deposit SnO thin films by aerosol-assisted chemical vapour deposition (AACVD) on glass at temperatures between 300 and 450 °C. While SnO is deposited under hot wall conditions as the only identifiable phase by p-XRD and Raman spectroscopy for both precursors, morphological analysis by SEM reveals inferior substrate coverage in comparison to previously reported ureide-based precursor systems.",
author = "Hill, {Michael S.} and Johnson, {Andrew L.} and Lowe, {John P.} and Molloy, {Kieran C.} and Parish, {James D.} and Thomas Wildsmith and Kingsley, {Andrew L.}",
year = "2016",
month = "12",
day = "7",
doi = "10.1039/C6DT02508K",
language = "English",
volume = "45",
pages = "18252--18258",
journal = "Dalton Transactions",
issn = "1477-9226",
publisher = "Royal Society of Chemistry",
number = "45",

}

TY - JOUR

T1 - Aerosol-assisted CVD of SnO from stannous alkoxide precursors

AU - Hill, Michael S.

AU - Johnson, Andrew L.

AU - Lowe, John P.

AU - Molloy, Kieran C.

AU - Parish, James D.

AU - Wildsmith, Thomas

AU - Kingsley, Andrew L.

PY - 2016/12/7

Y1 - 2016/12/7

N2 - The stannous alkoxides [Sn(OR)2] [R = i-Pr, t-Bu, C(Et)Me2, CHPh2, CPh3] have been synthesised by reaction of Sn(NR′2)2 with two equivalents of HOR [R′ = Me, R = i-Pr; R′ = SiMe3, R = t-Bu, C(Et)Me2, CHPh2, CPh3]. Single crystal X-ray diffraction analysis of the bis(diphenylmethoxide) (4) and bis(triphenylmethoxide) (5) species have shown them to comprise three-coordinate Sn(ii) centres through dimerisation in the solid state with the alkoxide units adopting transoid and cisoid configurations across the {Sn2O2} cores respectively. Thermogravimetric analysis indicates clean decomposition and some evidence of volatility at temperatures >200 °C for all three aliphatic alkoxides, whereas both the diphenyl- and triphenylmethoxide compounds provide higher decomposition temperatures and, for the triphenylmethoxide derivative, a residual mass consistent with the formation of a carbon-containing residue. The previously reported iso-propoxide (1) and tert-butoxide (2) derivatives have been utilised in toluene solution to deposit SnO thin films by aerosol-assisted chemical vapour deposition (AACVD) on glass at temperatures between 300 and 450 °C. While SnO is deposited under hot wall conditions as the only identifiable phase by p-XRD and Raman spectroscopy for both precursors, morphological analysis by SEM reveals inferior substrate coverage in comparison to previously reported ureide-based precursor systems.

AB - The stannous alkoxides [Sn(OR)2] [R = i-Pr, t-Bu, C(Et)Me2, CHPh2, CPh3] have been synthesised by reaction of Sn(NR′2)2 with two equivalents of HOR [R′ = Me, R = i-Pr; R′ = SiMe3, R = t-Bu, C(Et)Me2, CHPh2, CPh3]. Single crystal X-ray diffraction analysis of the bis(diphenylmethoxide) (4) and bis(triphenylmethoxide) (5) species have shown them to comprise three-coordinate Sn(ii) centres through dimerisation in the solid state with the alkoxide units adopting transoid and cisoid configurations across the {Sn2O2} cores respectively. Thermogravimetric analysis indicates clean decomposition and some evidence of volatility at temperatures >200 °C for all three aliphatic alkoxides, whereas both the diphenyl- and triphenylmethoxide compounds provide higher decomposition temperatures and, for the triphenylmethoxide derivative, a residual mass consistent with the formation of a carbon-containing residue. The previously reported iso-propoxide (1) and tert-butoxide (2) derivatives have been utilised in toluene solution to deposit SnO thin films by aerosol-assisted chemical vapour deposition (AACVD) on glass at temperatures between 300 and 450 °C. While SnO is deposited under hot wall conditions as the only identifiable phase by p-XRD and Raman spectroscopy for both precursors, morphological analysis by SEM reveals inferior substrate coverage in comparison to previously reported ureide-based precursor systems.

UR - http://www.scopus.com/inward/record.url?scp=84995761612&partnerID=8YFLogxK

UR - http://dx.doi.org/10.1039/C6DT02508K

U2 - 10.1039/C6DT02508K

DO - 10.1039/C6DT02508K

M3 - Article

VL - 45

SP - 18252

EP - 18258

JO - Dalton Transactions

T2 - Dalton Transactions

JF - Dalton Transactions

SN - 1477-9226

IS - 45

ER -